Submitting specially crafted icons (.ico) or .pict images to ImageMagickcan trigger integer overflows that can lead to buffer overflows andmemory allocations issues. Depending on the case, this can lead to adenial of service or possibly worse.

For Debian 6 Squeeze, those issues have been fixed in imagemagick8:6.6.0.4-3+squeeze7. We recommend that you upgrade your packages.